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D00927620E
US-122L
USB Audio/MIDI Interface
OWNER'S MANUAL
IMPORTANT SAFETY PRECAUTIONS
For U.S.A.
TO THE USER
This equipment has been tested and found
to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment
off and on, the user is encouraged to try to
correct the interference by one or more of the
following measures.
a) Reorient or relocate the receiving antenna.
b) Increase the separation between the
equipment and receiver.
c) Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
d) Consult the dealer or an experienced
radio/TV technician for help.
CAUTION
Changes or modifications to this equip m e n t n o t ex p r e s s l y a p p r ove d by T E AC
CORPORATION for compliance could void
the user's authority to operate this equipment.
2
TASCAM US-122L
Declaration of Conformity
Model Number:
Trade Name:
Responsible party:
Telephone number:
US-122L
TASCAM
TEAC AMERICA, INC.
Montebello, California, U.S.A.
1-323-726-0303
This device complies with Par t 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
( 2 ) This device must accept any inter ference
received, including interference that cause undesired operation.
This appliance has a serial number
located on the rear panel. Please
record the model number and serial
number and retain them for your
records.
Model number
Serial number
IMPORTANT SAFETY PRECAUTIONS
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not block any ventilation openings.
Install in accordance with the manufacturer's instructions.
8 Do not install near any heat sources such
as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
9 Only use attachments/accessories specified by the manufacturer.
10 Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer,
or sold with the apparatus. When a cart is
used, use caution when moving the cart/
apparatus combination to avoid injury from
tip-over.
• Do not expose this apparatus to drips or
splashes.
• Do not place any objects filled with liquids,
such as vases, on the apparatus.
• Do not install this apparatus in a confined
space such as a book case or similar unit.
* Microsoft, Windows, Windows XP, and
Windows Vista are either registered
trademarks or trademarks of Microsoft
Corporation in the United States and/or
other countries.
* Macintosh, Mac OS and Mac OS X are
trademarks of Apple Inc., registered in
the U.S. and other countries.
* Pentium is a trademark of Intel
Corporation in the U.S. and other countries.
* AMD Athlon is a trademark of
Advanced Micro Devices, Inc.
* Other company names and product
names in this document are the trademarks or registered trademarks of their
respective owners.
TASCAM US-122L
3
Contents
IMPORTANT
SAFETY PRECAUTIONS
1 – Introduction................. 5
5 – Connections................14
Overview.......................... 5
Features............................ 5
USB connections............. 14
Audio connections......... 14
A note about computer
operation........................... 5
Mic....................................... 14
Guitar................................... 15
Keyboard & etc. (analog connection)............................... 15
Analog record player......... 15
Speakers/headphones....... 15
What is in the package.... 5
Conventions used in this
manual....................... 6
2 – Parts of the US-122L.... 7
MIDI connections........... 16
Top panel.......................... 7
Rear panel......................... 8
Front panel....................... 9
6 – MIDI Implementation
Chart...........................17
3 – Installation..................10
7 – Specifications and
performance...............18
System requirements..... 10
Windows...........................10
Mac OS X...........................10
Installing the drivers...... 11
Installing the drivers for
Windows...................11
Installation procedure....... 11
Installing the drivers for
Mac OS X...................12
Settings on your
computer.................. 12
4 – Control panel
settings.......................13
Overview........................ 13
Status section..................... 13
Driver settings................ 13
Audio Performance..........13
4
TASCAM US-122L
Audio specifications....... 18
Audio performance........ 19
Other characteristics...... 19
Physical characteristics... 20
Dimensions..................... 20
1 – Introduction
Please read this owner’s manual carefully
before you begin using the US-122L, and
use the product correctly as directed in
order to ensure long and trouble-free
enjoyment of all its functionality.
After you have read this manual, keep it
nearby for reference when required.
We can accept no responsibility for any
loss of the data you record using this product onto other MIDI equipment in your
system or onto storage devices such as hard
disk.
Overview
The US-122L is a USB-based audio interface designed for use with Digital Audio
Workstation (DAW) software. It provides a
two-input, two-output 24-bit 96 kHz audio
interface and a 16-channel MIDI interface.
Because the US-122L is USB-based, it is
the ideal companion to any desktop or laptop-based digital recording setup. And
since the US-122L operates using only
USB power, you can use it with a laptop
computer to create a very compact and
portable digital audio workstation system.
The US-122L is also an ideal way to capture analog sources such as records or cassette tapes into your computer and preserve
them as audio CDs.
Features
• 24-bit / 96 kHz audio interface.
• Analog input signals (L, R) can be input
at the same time and recorded simultaneously into your computer via USB.
• Two XLR mic/line inputs (balanced) and
two 1/4” phone mic/line inputs (balanced/unbalanced) are provided. One of
the 1/4” phone inputs can be switched to
allow direct input of an electric guitar or
electric bass (R channel only).
• Unbalanced stereo line output (RCA
connector) and headphone output.
• MIDI IN/OUT.
• Direct Monitor function allows zero-latency monitoring of the input.
• Power is supplied by the USB connector.
A note about computer operation
If you are unsure about how to perform
basic computer operations appearing in
this manual, please refer to the owner’s
manual that came with your computer.
What is in the package
The US-122L package contains the following items.
• US-122L main unit
• USB cable
• Owner’s manual (this document)
• CD-ROM (containing drivers and manuals)
• DVD-ROM (Cubase LE4)
• Cubase LE4 Quick Start Guide
TASCAM US-122L
5
1 – Introduction
Conventions used in this manual
The following conventions are used in this
manual:
Front panel keys, knobs, and indicators,
and rear panel connectors are designated in
all-capital letters.
Example: LINE IN jacks
6
TASCAM US-122L
This typeface is used to designate messages displayed by the software.
Example: Control Surface Protocol
This typeface is used to designate software
menu functions and on-screen controllers.
Example: ASIO Device
2 – Parts of the US-122L
Top panel
1
PHONES/LINE OUT level knob
Controls the output level of the LINE OUT
jacks and the PHONES jack.
2
MIDI IN indicator Lights when MIDI
data is being received at the MIDI IN con-
nector.
NOTE
A device that transmits the MIDI Active
Sense message will cause this indicator
to blink constantly. To stop the blinking,
disable the use of MIDI Active Sense on
the sending device, if possible.
MIDI OUT indicator Lights when MIDI
data is being transmitted from the MIDI
OUT connector.
3
USB indicator Lights to indicate a
valid USB connection to the host computer.
4
MON MIX balance knob Controls
the balance of the signal sources being output from the LINE OUT jacks and the
PHONES jack. When this knob is turned to
the far left, the signal being input to the
US-122L (from the XLR jacks, or 1/4”
phone jacks) will be output. When this
knob is turned to the far right, the output
signal received from the computer via USB
will be output.
5
MONO switch Turn this switch ON
if you want to monitor in monaural. This
switch affects only the analog input signal.
TASCAM US-122L
7
2 – Parts of the US-122L
6
INPUT knobs (L, R) Adjust the level
of the audio signal being input to the MIC
IN jacks and LINE IN jacks.
LINE position if you have connected an
7
9
SIG/OL indicators Light when signals are being input to the input channels
(L, R). They will light green to indicate a
signal is present, and will light red immediately before distortion occurs. These
indicators apply only to the analog inputs.
NOTE
These indicators will light green when
the input signal level is in the range of
-30 dBFS to -2 dBFS. The indicators will
light red when the input signal level
exceeds -2 dBFS.
8
MIC/LINE-GUITAR select switch Set
this switch as appropriate for the input
source you have connected to the LINE/
GUITAR IN R jack. Use the GUITAR position if you have directly connected an electric guitar or electric bass. Use the MIC/
electronic musical instrument, audio
device, or mic.
PHANTOM switch Turns on the
+48V phantom power supplied to the MIC
IN jacks.
WARNING
Microphones should not be connected
to or disconnected from the US-122L
with phantom power switched on.
Unbalanced dynamic microphones
should never be connected to phantompowered connectors.
NOTE
Turn this switch on only if you are using
condenser microphones that require
phantom power.
Please note that if you are operating
the unit with a battery-powered laptop
computer, the battery life of the computer will be reduced if the PHANTOM
switch is on.
Rear panel
0
USB connector Use a USB cable to
connect this to the host computer’s USB
2.0 port. The US-122L obtains power from
the host computer via the USB cable. In
rare cases, a computer’s USB port may not
be able to supply enough power to operate
the US-122L. If this occurs, consider pur8
TASCAM US-122L
chasing a USB 2.0 hub that comes with its
own external power supply.
NOTE
If the US-122L is operating with a USB
1.1 (Full Speed) connection, the sample
rate choices will be limited to 44.1 kHz
and 48 kHz.
2 – Parts of the US-122L
q
MIDI OUT connector Transmits
MIDI messages.
w
MIDI IN connector Receives MIDI
messages.
e LINE OUT L/R jacks (RCA connector,
unbalanced) These are analog stereo output jacks.
NOTE
If you connect headphones to the
PHONES jack, no signal will be output
from the LINE OUT jacks.
Front panel
r
MIC IN (L, R) jacks (XLR balanced)
These are analog mic input jacks. The wiring is as follows: pin 1 = ground, pin 2 =
hot, pin 3 = cold.
If the MIC/LINE-GUITAR select switch is in
the MIC/LINE position, the R jack operates
as a balanced input jack. (Sleeve = ground,
tip = hot, ring = cold)
t
y
LINE IN L and LINE/GUITAR IN R
jacks (TRS 1/4” phone jacks) These are
balanced line input jacks. The R channel
also accommodates guitar input. If the top
panel MIC/LINE-GUITAR select switch is in
the GUITAR position, the R jack operates as
an unbalanced input jack for guitar.
PHONES jack (stereo 1/4” phone)
This is a headphone output jack.
NOTE
If you connect headphones to this jack,
no signal will be output from the LINE
OUT jacks.
TASCAM US-122L
9
3 – Installation
System requirements
Windows
Supported operating system: 32-bit
Windows XP SP2 or 32-bit Windows Vista
Recommended system: Pentium or AMD
Athlon 1 GHz or faster (or equivalent processor), 512 MB or more memory, USB 2.0
port
These requirements are for when using
Cubase LE4. If you are using other application software, you will need to consult
the operating requirements for the software
you are using.
NOTE
The number of usable audio tracks will
depend on the speed of your hard disk.
The faster your hard disk, the better
your results will be.
We recommend that you have at least
512 MB of memory, but when using digital audio application software, the
more memory you have the happier you
will be.
Although this product has been checked
for use with typical computers that
meet the above operating requirements, we cannot guarantee that it will
operate with all computers that meet
these requirements. Please be aware
that even under the same conditions,
processing capability may vary depending on differences of the design and system.
Mac OS X
• Macintosh computer with a USB 2.0
connector
• Mac OS X 10.3.9 & higher on PowerPC
Mac systems
10
TASCAM US-122L
For Macintosh as well, the more memory
you have and the faster your hard disk, the
happier you will be when using digital
audio application software
3 – Installation
Installing the drivers
In order to use the US-122L, you must
install the appropriate drivers into your
computer. As described below, this is an
easy process using the CD-ROM included
with the US-122L.
Drivers are updated from time to time. You
can download the most recent version of
the drivers from the TASCAM website
<http://www.tascam.com/>.
Do not connect the US-122L to your computer before you have installed the drivers.
CAUTION
Handle the enclosed CD-ROM with care.
If the disc becomes scratched or dirty,
your computer may be unable to read it
and the software cannot be installed. If
the disc becomes unreadable, a fee will
be charged for its replacement.
WARNING
Never attempt to play the enclosed
CD-ROM in a conventional audio CD
player, as the resulting noise may damage your speakers or your hearing.
Installing the drivers for Windows
The US-122L’s drivers are provided on the
4 Click the Install the Driver button and
CD-ROM as an executable installer entitled US-122L & US-144 driver x_yy.exe
(x_yy is the version number.) Installation
of the drivers requires that you run this
installer before plugging in your US-122L
for the first time. If you do happen to plug
in your US-122L before running the
installer, the Add New Hardware wizard
will appear. In this case, simply unplug the
US-122L, cancel all the Add New
Hardware wizard windows, and run
TASCAM’s driver installer.
follow the instructions on the screen.
The drivers will be installed.
NOTE
During driver installation, a warning
that “this software ... has not passed
Windows Logo testing“ will appear. If this
message appears, click Continue to proceed with the installation.
Installation procedure
1 Make sure that the US-122L is not
connected to your computer.
2 Double-click the executable installation file US-122L & US-144 driver x_
yy.exe. The installer will start up.
3 Select the desired language from the
menu and click the OK button. A dialog box will appear.
TASCAM US-122L
11
3 – Installation
Installing the drivers for Mac OS X
The US-122L’s drivers are provided on the
CD-ROM as a package file entitled
US-122L & US-144 driver x_yy.mpkg. (x_
yy is the version number.) Simply double-
click on this package file’s icon to launch it
and follow the directions that appear on
your screen.
Settings on your computer
Here are a few basic points to help you set
up your computer for best performance
with audio applications.
• Do not run other applications. You will
probably use your computer for applications other than audio, but we recommend that you avoid running other applications at the same time you are running
audio programs. Processing digital audio
places a considerable load on your computer.
This means that if you are running other
applications (especially graphics or
Internet tools) at the same time as your
audio application, the processing may
not happen fast enough.
12
TASCAM US-122L
• Certain devices such as network cards or
WinModems can cause conflicts with
USB processing. If you experience such
a conflict, you can use the Device
Manager to temporarily disable the
offending device.
• If your computer has an IDE hard disk,
enabling Direct Memory Addressing
(DMA) will improve performance. In
Windows XP and Windows Vista, this is
enabled by default.
IMPORTANT
SAFETYpanel
PRECAUTIONS
4 – Control
settings
Overview
The Control Panel lets you make various
settings for the US-122L’s functionality.
On Windows XP and Windows Vista, the
US-122L & US-144 Control Panel shortcut
can be found in the Windows Start menu in
the Windows control panel and also under
All Programs\TASCAM\US-122L &
US-144.
On Mac OS X, the US-122L & US-144
Control Panel is located in the
Applications folder. Other useful audio and
MIDI settings for Mac OS X can be found
in Applications/Utilities/Audio MIDI
Setup.
The Control Panel is divided into the fol-
lowing two sections.
Status section
This shows the current status of the driver
and the connected hardware.
You cannot edit the settings from this section.
Setting section
You can edit the various settings of the
driver.
NOTE
The Mac OS X US-122L control panel has
no settings.
Driver settings
Audio Performance
The US-122L driver temporarily stores
input and output audio sample in buffers.
The size of these buffers can be adjusted.
A smaller buffer size will reduce the delay
when monitoring the audio signal, but will
require your computer to perform the processing faster. If the processing does not
occur in time (e.g., if other system operations are occurring), you may hear clicks,
pops, or dropouts in the audio signal. A
larger buffer size provides more safety
against such problems caused by other system activities, but will produce greater
delay when monitoring the audio signal.
You should select the buffer size that works
best for your system.
On the Windows version of the US-122L
Control Panel, the Audio Performance setting permits you adjust the buffer size that
will be used by all audio applications. The
Lowest Latency setting is the minimum
buffer size, and the Highest Latency setting is the maximum buffer size.
On Mac OS X, the buffer size is determined by each audio application.
Consequently, there is no Audio
Performance setting on the Mac OS X version of the US-122L Control Panel. Some
applications select the buffer size automatically while others permit the user to select
the buffer size. Please consult your audio
application’s documentation for details.
TASCAM US-122L
13
5 – Connections
USB connections
Using the included cable, connect the
US-122L to your computer as shown in the
illustration.
NOTE
Some USB devices access the USB bus
frequently. To avoid dropouts and clicks
in the audio signal, we strongly recommend that you do not connect other
USB devices to the USB bus used by the
US-122L. USB keyboards and mice are
exceptions to this, and will probably not
cause problems.
Computer
USB
Audio connections
Connect the output signal of your mic, guitar, keyboard, or other audio device to the
US-122L, where it will be converted into
digital audio and sent via USB to your
computer. Connect the output of the
US-122L to your speakers (via an amp) or
headphones, so you will be able to monitor
the audio signals coming into the US-122L
or being produced by your computer.
NOTE
The US-122L has two input channels (L,
R), with a MIC IN jack (XLR) , LINE IN
and LINE/GUITAR IN jack (1/4” phone
jack) provided for each channel. Do not
connect signals to both of these analog
input jacks at the same time. If both are
connected, the signal will not be correctly input to the US-122L.
14
TASCAM US-122L
Mic
Connect your mics to the MIC IN (L , R)
jacks (XLR). If you are using a condenser
mic that requires phantom power, turn on
the phantom power.
If you're using a
condenser mic
5 – Connections
Guitar
Analog record player
Connect your guitar to the R-channel LINE/
GUITAR IN jack (1/4” phone jack) and set
the MIC/LINE-GUITAR switch to GUITAR.
The output of an analog record player cannot be connected directly to the US-122L.
You must connect a phono amp between
your analog record player and the
US-122L. (Alternatively, you can connect it
via an audio amp that has PHONO inputs.)
Guitar
OUT
Keyboard / drum machine /
sound module / cassette
deck / MD / CD etc. (analog
connection)
Phono amp or
amp with PHONO input
Analog record
player
Speakers/headphones
Connect the analog audio output of these
devices to the LINE IN L or LINE/GUITAR
IN R jacks (1/4” phone jack). If you use the
R-channel, set the MIC/LINE-GUITAR
switch to MIC/LINE.
Headphones
OUT
Powered speakers,
or amp and speakers
Keyboard /
drum machine /
sound module /
cassette deck /
MD / CD or similar device
TASCAM US-122L
15
5 – Connections
MIDI connections
Connect your sound module, keyboard/
synthesizer, drum machine, or other MIDI
device to the US-122L as shown below.
You can use the MIDI IN/MIDI OUT connectors to transmit and receive MTC
(MIDI Time Code). This allows the MTCcompatible DAW (Digital Audio
Workstation) computer application to synchronize with your MIDI equipment.
USB
Computer
MIDI IN
Sound module etc.
MIDI OUT
Keyboard /
synthesizer etc.
USB
Computer
MIDI IN
MIDI OUT
Sequencer /
drum machine etc.
16
TASCAM US-122L
IMPORTANT
SAFETY PRECAUTIONS
6 – MIDI Implementation
Chart
Function
Basic Channel
Mode
Note
Number
Velocity
After Touch
Pitch Bender
Control Change
Program Change
At power ON
Changed
At power ON
Messages
Altered
Range
Note ON
Note OFF
Polyphonic
Channel
Range #
System Exclusive
System Common
System
Real Time
Other
:Song Pos
:Song Sel
:Tune
:Clock
:Commands
:Local on/off
:All note off
:Active sensing
:Reset
Transmitted
X
X
X
X
*************
X
*************
X
X
X
X
X
X
X
*************
X
Received
X
X
X
X
Remarks
Through
X
Through
X
X
X
X
X
X
X
Through
X
Through
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Through
Through
Through
Through
Through
Through
Through
Through
Notes
Mode 1: Omni on, Poly
Mode 3: Omni off, Poly
Mode 2: Omni on, Mono
Mode 4: Omni off, Mono
O:Yes
X:No
TASCAM US-122L
17
7 – Specifications and performance
Audio specifications
Nominal input levels
MIC IN L and R (XLR balanced)
–58 dBu (TRIM=max) to –14 dBu
(TRIM=min)
LINE IN L and LINE/GUITAR IN R in
MIC/LINE position (1/4” jack, balanced)
–40 dBu (TRIM=max) to +4 dBu
(TRIM=min)
LINE/GUITAR IN R in GUITAR
–51 dBu (TRIM=max) to –7 dBu
(TRIM=min)
position (1/4” jack, unbalanced)
Maximum input levels
MIC L and R (XLR balanced)
+2 dBu (TRIM=min)
LINE IN L and LINE/GUITAR IN R in
MIC/LINE position (1/4” jack, balanced)
+20 dBu (TRIM=min)
LINE/GUITAR IN R in GUITAR
+9 dBu (TRIM=min)
position (1/4” jack, unbalanced)
Input impedance
MIC IN L and R (XLR balanced)
2.4 kΩ
LINE IN L and LINE/GUITAR IN R in
MIC/LINE position (1/4” jack, balanced)
10 kΩ
LINE/GUITAR IN R in GUITAR
1 MΩ
position (1/4” jack, unbalanced)
Nominal output level
LINE OUT (RCA unbalanced)
–10 dBV
Maximum output level
LINE OUT (RCA unbalanced)
+6 dBV
Output impedance
LINE OUT (RCA unbalanced)
100 Ω
Maximum output power
PHONES (1/4” stereo jack)
18
TASCAM US-122L
14 mW + 14 mW (32 Ω)
7 – Specifications and performance
Audio performance
Signal-to-noise ratio
LINE IN (through ADC and DAC) to LINE
OUT
> 96 dB (A-weighted, TRIM=min., input
impedance at 40 Ω)
LINE IN (through direct monitor) to LINE
OUT
> 100 dB (A-weighted, TRIM=min., input
impedance 40 Ω)
Total harmonic distortion (THD+N, 22 Hz to 22 kHz)
LINE IN (through ADC and DAC) to LINE
OUT
< 0.006% (1 kHz sine +20 dBu input,
TRIM=min.)
LINE IN (through direct monitor) to LINE
OUT
< 0.004% (1 kHz sine +20 dBu input,
TRIM=min.)
Other characteristics
Digital audio
A/D Conversion (AK5381)
24-bit/96 kHz
D/A Conversion (AK4384)
24-bit/96 kHz
MIDI
MIDI IN and MIDI OUT ports (DIN 5-pin)
Conform to MIDI standards
USB
USB port (down stream connector)
USB 2.0 Format
Host computer compatibility
Operating system
Windows
32-bit Windows XP SP2 or 32-bit Windows Vista
Macintosh
Mac OS 10.3.9 or later
Communication
Audio/MIDI interface
protocols
Bundled software
USB 2.0
Windows
WDM(KS), ASIO/AISO2 and GSIF2
Macintosh
Core Audio, MIDI interface (OS X)
Cubase LE4 (for Windows or Macintosh)
TASCAM US-122L
19
7 – Specifications and performance
Physical characteristics
Dimensions
External dimensions (w x h x d)
147 x 192 x 48 mm
Weight
1 Kg
Supplied via USB
5V, maximum current 500 mA
Power
192 mm
Dimensions
147 mm
20
TASCAM US-122L
48 mm
Notes
7 – Specifications and performance
TASCAM US-122L
21
Notes
7 – Specifications and performance
22
TASCAM US-122L
Notes
7 – Specifications and performance
TASCAM US-122L
23
US-122L
TEAC CORPORATION
Phone: +81-42-356-9143
1-47 Ochiai, Tama-shi, Tokyo 206-8530, Japan
TEAC AMERICA, INC.
www.tascam.jp
www.tascam.com
Phone: +1-323-726-0303
7733 Telegraph Road, Montebello, California 90640, USA
TEAC CANADA LTD.
www.tascam.com
Phone: +1905-890-8008 Facsimile: +1905-890-9888
5939 Wallace Street, Mississauga, Ontario L4Z 1Z8, Canada
TEAC MEXICO, S.A. De C.V.
www.teacmexico.net
Phone: +52-55-5010-6000
Río Churubusco 364, Colonia Del Carmen, Delegación Coyoacán, CP 04100, México DF, México
TEAC UK LIMITED
www.tascam.co.uk
Phone: +44-8451-302511
Suites 19 & 20, Building 6, Croxley Green Business Park, Hatters Lane, Watford, Hertfordshire, WD18 8TE, UK
TEAC EUROPE GmbH
www.tascam.de
Phone: +49-611-71580
Bahnstrasse 12, 65205 Wiesbaden-Erbenheim, Germany
Printed in China

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